exactly. And with
video-linux there is no problem as well. I already tried
optimus-manager one again but with nvidia the freeze happens. I am stuck. =(
tried without success.
edit 1: it looks a regression envolving KWin. If I turn off compositor (ALt + Shift F12), the problem gone.
edit 2: look at comment #28. A guy has already patched. Should I talk with him (ask permittion) and with @philm to include it on Manjaro?